CN113275902A

CN113275902A - Motor shaft machining production line and machining method

Info

Publication number: CN113275902A
Application number: CN202110763114.1A
Authority: CN
Inventors: 耿海花; 刘新成; 姚国君
Original assignee: Siemens Motor China Co ltd
Current assignee: Siemens Motor China Co ltd; Siemens Standard Motors Ltd
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2021-08-20

Abstract

The invention provides a motor shaft machining production line and a motor shaft machining method, wherein the motor shaft machining production line comprises the following steps: the numerical control milling and drilling machine is used for milling two end faces of the shaft material and milling and drilling a central hole on the two end faces of the shaft material; the first scrap iron cleaning device is used for cleaning scrap iron remained in a central hole in the shaft material; the first numerical control lathe and the second numerical control lathe are used for roughly machining the shaft material; the third numerically controlled lathe is used for carrying out finish machining on the shaft material; the numerical control grinding machine is used for grinding the shaft material; the numerical control machining center is used for milling key grooves in the shaft material; the conveying device is used for conveying the shaft material from the working area of the first robot to the working area of the second robot; the first robot and the second robot are used for transferring the shaft materials among the devices. This scheme workman's intensity of labour when can reducing processing motor shaft.

Description

Motor shaft machining production line and machining method

Technical Field

The invention relates to the technical field of mechanical engineering, in particular to a motor shaft machining production line and a motor shaft machining method.

Background

The motor shaft is one of the key parts of the motor, and the machining of the motor shaft comprises a plurality of procedures such as drilling, turning, milling and grinding. In the machining process of the motor shaft, central holes need to be milled and drilled at two ends of the shaft material, so that the shaft material is fixed on a lathe through the central holes, and the shaft material is conveniently turned through the lathe. After the center hole is milled and drilled on the end face of the shaft material, iron chips can be remained in the center hole, when the shaft material is fixed on a lathe through the center hole, the iron chips remained in the center hole can influence the positioning of the shaft material on the lathe, and large errors can be caused when the shaft material is turned, so that the iron chips remained in the center hole can be cleaned after the center hole is milled and drilled.

At present, after a central hole is milled and drilled on the end face of a shaft material, the scrap iron remained in the central hole is cleaned in a manual mode. Because the shaft material is required to be turned, ground, milled and the like after the central hole is drilled and milled on the shaft material, in order to ensure the processing efficiency of the motor shaft, a specially-assigned person is required to clean scrap iron remained in the central hole. The workers in charge of cleaning the iron chips in the central hole need to timely clean the shaft material milled and drilled with the central hole so as to avoid influencing the subsequent processes, and therefore the workers need to continuously work to clean the residual iron chips in the central hole, and the labor intensity of the workers is high during the machining of the motor shaft.

Disclosure of Invention

In view of the above, the motor shaft machining production line and the motor shaft machining method provided by the invention can reduce the labor intensity of workers in machining the motor shaft.

In a first aspect, an embodiment of the present invention provides a motor shaft machining production line, including: the device comprises a numerical control milling and drilling machine, a first scrap iron cleaning device, a first numerical control lathe, a second numerical control lathe, a third numerical control lathe, a numerical control machining center, a numerical control grinding machine, a first robot, a second robot and a conveying device;

the numerical control milling and drilling machine, the first scrap iron cleaning device, the first numerical control lathe and the second numerical control lathe are arranged around the first robot, the third numerical control lathe, the numerical control machining center and the numerical control grinding machine are arranged around the second robot, and the conveying device is arranged between the first robot and the second robot;

the numerical control milling and drilling machine is used for milling two end faces of a shaft material and milling and drilling a central hole in the two end faces of the shaft material;

the first scrap iron cleaning device is used for cleaning scrap iron remained in the central hole on the shaft material;

the first numerical control lathe and the second numerical control lathe are used for roughly machining the shaft material after scrap iron is cleaned by the first scrap iron cleaning device;

the third numerically controlled lathe is used for performing finish machining on the shaft material subjected to rough machining by the first numerically controlled lathe and the second numerically controlled lathe;

the numerical control grinding machine is used for grinding the shaft material after finish machining by the third numerical control lathe;

the numerical control machining center is used for milling key grooves on the shaft material ground and machined by the numerical control grinding machine to obtain a finished shaft product;

the first robot is used for transferring the shaft material among the numerical control milling and drilling machine, the first scrap iron cleaning device, the first numerical control lathe, the second numerical control lathe and the conveying device;

the conveying device is used for conveying the shaft material roughly machined by the first numerically controlled lathe and the second numerically controlled lathe from a working area of the first robot to a working area of the second robot;

and the second robot is used for transferring the shaft material among the conveying device, the third numerically controlled lathe, the numerically controlled grinder and the numerically controlled machining center.

In a first possible implementation manner, with reference to the first aspect, the first iron scrap cleaning device includes: a protective cover and an air blowing pipe;

the protective cover is of a tubular structure, the axial direction of the protective cover is along the vertical direction, the lower end of the protective cover is closed, the air blowing pipe penetrates into the protective cover from the lower end of the protective cover, and the air outlet direction of the air blowing pipe is upward along the vertical direction;

when the first robot stretches one end of the shaft material into the protective cover from the upper end of the protective cover, the air blowing pipe blows air upwards vertically to clean residual scrap iron in the central hole at one end of the shaft material stretching into the protective cover.

In a second possible implementation manner, with reference to the first aspect, the first numerically controlled lathe is configured to perform rough machining on the first end of the shaft material, where when the first numerically controlled lathe performs rough machining on the first end of the shaft material, a main shaft of the first numerically controlled lathe is connected to the second end of the shaft material;

and the second numerically controlled lathe is used for roughly machining the second end of the shaft material, wherein when the second numerically controlled lathe roughly machines the second end of the shaft material, a main shaft of the second numerically controlled lathe is connected with the first end of the shaft material.

In a third possible implementation manner, in combination with the second possible implementation manner, a first position sensor is arranged on the bed of the first numerically controlled lathe, a first sensing column is arranged on the machine tool tailstock of the first numerically controlled lathe, a second position sensor is arranged on the bed of the second numerically controlled lathe, and a second sensing column is arranged on the machine tool tailstock of the second numerically controlled lathe;

when the machine tool tailstock of the first numerical control lathe moves to a position in contact with the central hole in the first end face of the shaft material, the first induction column is in contact with the first position inductor, so that the first position inductor sends a first state feedback signal for indicating that the shaft material is clamped;

when the machine tool tailstock of the second numerical control lathe runs to a position where the machine tool tailstock is in contact with the central hole in the second end face of the shaft material, the second induction column is in contact with the second position inductor, and the second position inductor sends a second state feedback signal for indicating that the shaft material is clamped.

In a fourth possible implementation manner, with reference to the first aspect, the motor shaft machining line further includes: a second scrap iron cleaning device;

the third numerically controlled lathe, the second scrap iron cleaning device, the numerically controlled machining center and the numerically controlled grinding machine are arranged around the second robot;

the second robot is used for transferring the shaft material subjected to finish machining by the third numerically controlled lathe to the second scrap iron cleaning device;

and the second scrap iron cleaning device is used for cleaning scrap iron wound on the shaft material after the third numerically controlled lathe carries out finish machining on the shaft material.

In a fifth possible implementation manner, with reference to the fourth possible implementation manner, the second iron scrap cleaning device includes: a bracket and a steel brush;

the bracket is fixedly arranged relative to the second robot, and the steel brush is arranged at one end of the bracket;

and the second robot is used for transferring the shaft material subjected to finish machining by the third numerically controlled lathe to a position in contact with the steel brush, and driving the shaft material to move relative to the steel brush on the premise that the shaft material is in contact with the steel brush, so that scrap iron wound on the shaft material is removed by the steel brush.

In a sixth possible implementation manner, with reference to the first aspect, the motor shaft machining line further includes: a chuck mounting and dismounting device;

the third numerically controlled lathe, the numerically controlled machining center, the chuck loading and unloading device and the numerically controlled grinding machine are arranged around the second robot;

the chuck loading and unloading device is used for installing or removing a grinding machine chuck at one end of the shaft material, wherein the grinding machine chuck is used for fixing the shaft material on a main shaft of the numerical control grinding machine;

and the second robot is used for transferring the shaft material subjected to finish machining by the third numerically controlled lathe to the chuck loading and unloading device, so that the grinding machine chuck is installed at one end of the shaft material subjected to finish machining by the third numerically controlled lathe, and transferring the shaft material subjected to machining by the numerically controlled grinding machine to the chuck loading and unloading device, so that the grinding machine chuck installed at one end of the shaft material is detached.

In a seventh possible implementation manner, in combination with the sixth possible implementation manner, the chuck attaching and detaching device includes: the device comprises a supporting platform, a cylinder, a pressure plate and a third position sensor;

the air cylinder, the pressing plate and the third position sensor are all fixed on the supporting platform;

the grinding machine chuck includes: the clamping head comprises a clamping head body, a connecting rod, a spring and a clamping plate;

the chuck body is of a circular ring-shaped structure, and the connecting rod is arranged on the outer side wall of the chuck body;

a through hole is formed in the side wall of the chuck main body, a first connecting hole communicated with the through hole is formed in the chuck main body along the axis direction of the chuck main body, a second connecting hole is formed in the middle of the clamping plate, the clamping plate penetrates through the through hole, and a pin shaft penetrating through the first connecting hole and the second connecting hole connects the chuck main body and the clamping plate;

one end of the spring is connected with the connecting rod, and the other end of the spring is connected with the clamping plate;

when the third position sensor senses that the second robot stretches one end of the shaft material into the annular hole of the chuck main body, the air cylinder stops jacking the first end of the clamping plate, the second end of the clamping plate moves towards the direction close to the shaft material under the action of the spring, the grinding machine chuck is installed on the shaft material through the clamping force of the chuck main body and the clamping plate on the shaft material, the pressing plate overturns towards the direction far away from the chuck main body, the relative position of the chuck main body and the supporting platform stops being fixed, and the second robot transfers the shaft material provided with the grinding machine chuck to the numerically-controlled grinding machine;

when the third position sensor senses that the second robot is to be installed the axle material of grinding machine chuck is transported to when the last target position of supporting platform, the clamp plate is to being close to the direction upset of chuck main part will chuck main part clamp the clamp plate with between the supporting platform, in order to right chuck main part with supporting platform's relative position fixes, the cylinder is right the roof pressure is carried out to the first end of grip block, makes the grip block with chuck main part stops right the axle material carries out the centre gripping, the second robot will demolish behind the grinding machine chuck the axle material is transported to numerical control machining center.

In an eighth possible implementation manner, with reference to the first aspect or any one of the possible implementation manners of the first aspect, the motor shaft machining line further includes: a tool compensating device;

the cutter compensation device is arranged outside the motor shaft processing production line;

the tool compensation device is used for responding to an externally input tool compensation command and performing tool compensation on the numerical control grinding machine.

In a second aspect, an embodiment of the present invention further provides a motor shaft machining method in a motor shaft machining line provided in the first aspect or any one of the possible implementation manners of the first aspect, including:

the numerical control milling and drilling machine mills two end surfaces of a shaft material and mills and drills a central hole on the two end surfaces of the shaft material;

the first robot transfers the shaft material processed by the numerical control milling and drilling machine to the first scrap iron cleaning device;

the first scrap iron cleaning device cleans scrap iron remained in the central hole on the shaft material;

the first robot transfers the shaft material cleaned by the scrap iron cleaning device to the first numerical control lathe;

the first numerical control lathe roughly processes the first end of the shaft material after scrap iron is cleaned by the first scrap iron cleaning device;

the first robot transfers the shaft material roughly machined by the first numerically controlled lathe to the second numerically controlled lathe;

the second numerically controlled lathe performs rough machining on the second end of the shaft material subjected to rough machining by the first numerically controlled lathe;

the first robot transfers the shaft material roughly processed by the second numerical control lathe to the conveying device;

the conveying device conveys the shaft material roughly machined by the second numerically controlled lathe from the working area of the first robot to the working area of the second robot;

the second robot transfers the shaft material roughly machined by the second numerically controlled lathe from the conveying device to the third numerically controlled lathe;

the third numerically controlled lathe performs finish machining on the shaft material subjected to rough machining by the second numerically controlled lathe;

the second robot transfers the shaft material subjected to finish machining by the third numerically controlled lathe to the numerically controlled grinder;

the numerical control grinding machine is used for grinding the shaft material which is subjected to finish machining by the third numerical control lathe;

the second robot transfers the shaft material ground and processed by the numerical control grinding machine to the numerical control processing center;

and the numerical control machining center mills key grooves on the shaft material ground and machined by the numerical control grinding machine to obtain a finished shaft product.

In a first possible implementation manner, with reference to the second aspect, before the second robot transfers the axle material after being finished by the third numerically controlled lathe to the numerically controlled grinding machine, the method further includes:

the second robot transfers the shaft material subjected to finish machining by the third numerically controlled lathe to a second scrap iron cleaning device;

and the second scrap iron cleaning device cleans scrap iron wound on the shaft material after the third numerical control lathe is subjected to finish machining.

In a second possible implementation manner, with reference to the second aspect or any possible implementation manner of the second aspect, the transferring, by the second robot, the axle material that is finished by the third numerically controlled lathe to the numerically controlled grinding machine includes:

the second robot transfers the shaft material subjected to finish machining by the third numerically controlled lathe to a chuck loading and unloading device; the chuck loading and unloading device is used for installing a grinder chuck at one end of the shaft material subjected to finish machining by the third numerically controlled lathe; the second robot transfers the shaft material provided with the grinding machine chuck to the numerical control grinding machine;

the second robot will pass through behind the numerically control grinder abrasive machining axle material is transported to the numerical control machining center includes:

the second robot transfers the shaft material ground and processed by the numerical control grinding machine to the chuck loading and unloading device; the chuck loading and unloading device is used for dismounting the grinding machine chuck arranged at one end of the shaft material; and the second robot transfers the shaft material with the grinding machine chuck removed to the numerical control machining center.

According to the technical scheme, the numerically controlled milling and drilling machine, the first iron chip cleaning device, the first numerically controlled lathe and the second numerically controlled lathe are arranged around the first robot, the numerically controlled milling and drilling machine is used for milling the two end faces of the shaft material, after the center hole is milled and drilled in the two end faces of the shaft material, the first robot is used for transferring the shaft material to the first iron chip cleaning device, the first iron chip cleaning device can be used for cleaning residual iron chips in the center hole in the end face of the shaft material, the first iron chip cleaning device is used for cleaning residual iron chips in the center hole in the shaft material, the first robot is used for transferring the shaft material to the first numerically controlled lathe and the second numerically controlled lathe, and the first numerically controlled lathe and the second numerically controlled lathe are used for roughly machining the shaft material. Therefore, the first robot can convey the shaft material needing to be cleaned of the iron scrap remained in the central hole to the first iron scrap cleaning device, the first iron scrap cleaning device can clean the iron scrap remained in the central hole in the shaft material, so that the automatic cleaning of the iron scrap remained in the central hole in the shaft material is realized, the iron scrap cleaning process does not need manual participation, and the labor intensity of workers in the motor shaft machining process can be reduced.

Drawings

FIG. 1 is a schematic view of a motor shaft machining line provided by an embodiment of the present invention;

FIG. 2 is a schematic view of a first scrap iron cleaning apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic view of another motor shaft manufacturing line provided by an embodiment of the present invention;

FIG. 4 is a schematic view of a second scrap iron cleaning apparatus according to an embodiment of the present invention;

FIG. 5 is a schematic view of yet another motor shaft manufacturing line provided by an embodiment of the present invention;

FIG. 6 is a schematic view of a chuck loading and unloading device according to an embodiment of the present invention;

FIG. 7 is a schematic view of another state of the chuck assembly and disassembly apparatus provided in accordance with an embodiment of the present invention;

fig. 8 is a flowchart of a motor shaft machining method according to an embodiment of the present invention.

List of reference numerals:

1: and (3) numerical control milling and drilling machine 2: first iron fillings cleaning device 3: first numerically controlled lathe

4: the second numerically controlled lathe 5: a third numerically controlled lathe 6: numerical control machining center

7: and (3) numerical control grinding machine 8: the first robot 9: second robot

10: the conveying device 11: second iron fillings cleaning device 12: chuck assembling and disassembling device

13: tool compensation device 14: the charging basket 15: blanking frame

16: first spot check station 17: the second sampling stage 21: protective cover

22: gas blowing pipe 111: the support 112: steel brush

100: shaft material 121: the support platform 122: cylinder

123: pressing plate 124: third position sensor 201: chuck body

202: the connecting rod 203: a spring 204: clamping plate

205: pin shaft

801: the numerical control milling and drilling machine mills two end surfaces of the shaft material and mills and drills a central hole on the two end surfaces of the shaft material

802: the first robot transfers the shaft material processed by the numerical control milling and drilling machine to the first scrap iron cleaning device

803: first iron fillings cleaning device clearance axle material is gone up downthehole remaining iron fillings of centre

804: the first robot transfers the shaft material cleaned by the scrap iron cleaning device to a first numerical control lathe

805: the first numerical control lathe performs rough machining on the first end of the shaft material cleaned by the scrap iron cleaning device

806: the first robot transfers the shaft material roughly processed by the first numerical control lathe to a second numerical control lathe

807: the second numerically controlled lathe performs rough machining on the second end of the shaft material subjected to rough machining by the first numerically controlled lathe

808: the first robot transfers the shaft material roughly processed by the second numerical control lathe to the conveying device

809: the conveying device conveys the shaft material from the working area of the first robot to the working area of the second robot

810: the second robot transfers the shaft material from the conveying device to a third numerically controlled lathe

811: the third numerically controlled lathe carries out finish machining on the shaft material roughly machined by the second numerically controlled lathe

812: the second robot transfers the shaft material after finish machining by the third numerically controlled lathe to the numerically controlled grinder

813: grinding the shaft material subjected to finish machining by the third numerically controlled lathe by the numerically controlled grinder

814: the second robot transfers the shaft material ground by the numerical control grinding machine to a numerical control machining center

815: the numerical control machining center mills the key groove on the shaft material ground and machined by the numerical control grinding machine to obtain a finished shaft product

Detailed Description

As before, behind the processing centre bore on the terminal surface of axle material, can be at the downthehole iron fillings that remain of centre bore of processing, and then follow-up adds the axle material through the lathe and adds man-hour, need fix a position the axle material through the centre bore, if the downthehole iron fillings that remain of centre bore, can lead to the location of axle material inaccurate, and then the influence carries out lathe work's precision to the axle material, for this reason needs to clear up the downthehole iron fillings that remain of centre bore to the axle material. At present sweep through the manual work to the centre bore on the axle material to remaining iron fillings in the clearance centre bore, but at motor shaft continuous processing's in-process, in order to guarantee motor shaft's machining efficiency, the workman need continuously clear up remaining iron fillings in the centre bore on the different axle materials, and then the intensity of labour that leads to the motor shaft to add the workman is great during processing.

In the embodiment of the invention, the first scrap iron cleaning device and the first robot are arranged on the motor shaft machining production line, after the numerical control milling and drilling machine mills and drills the center hole on the end surface of the shaft material, the first robot transfers the shaft material to the first scrap iron cleaning device, the first scrap iron cleaning device cleans scrap iron remained in the center hole on the shaft material, and then the first robot transfers the shaft material after scrap iron cleaning to the numerical control lathe for turning. Therefore, through the arrangement of the first scrap iron cleaning device and the first robot, scrap iron remained in the central hole in the shaft material can be automatically cleaned, the scrap iron cleaning process does not need manual participation, and the labor intensity of workers during machining of the motor shaft can be reduced.

The following describes a motor shaft machining line and a motor shaft machining method according to embodiments of the present invention in detail with reference to the accompanying drawings.

Fig. 1 is a schematic view of a motor shaft machining line provided in an embodiment of the present invention, and as shown in fig. 1, the motor shaft machining line includes: the device comprises a numerical control milling and drilling machine 1, a first scrap iron cleaning device 2, a first numerical control lathe 3, a second numerical control lathe 4, a third numerical control lathe 5, a numerical control machining center 6, a numerical control grinding machine 7, a first robot 8, a second robot 9 and a conveying device 10;

the numerical control milling and drilling machine 1, the first scrap iron cleaning device 2, the first numerical control lathe 3 and the second numerical control lathe 4 are arranged around a first robot 8, the third numerical control lathe 5, the numerical control machining center 6 and the numerical control grinding machine 7 are arranged around a second robot 9, and the conveying device 10 is arranged between the first robot 8 and the second robot 9;

the numerical control milling and drilling machine 1 is used for milling two end faces of a shaft material and milling and drilling a central hole in the two end faces of the shaft material;

the first scrap iron cleaning device 2 is used for cleaning scrap iron remained in a central hole in the shaft material;

the first numerically controlled lathe 3 and the second numerically controlled lathe 4 are used for roughly processing the shaft material after the scrap iron is cleaned by the first scrap iron cleaning device;

the third numerically controlled lathe 5 is used for carrying out finish machining on the shaft material roughly machined by the first numerically controlled lathe 3 and the second numerically controlled lathe 4;

the numerically controlled grinder 7 is used for grinding the shaft material which is subjected to finish machining by the third numerically controlled lathe 5;

the numerical control machining center 6 is used for milling a key groove on the shaft material ground and machined by the numerical control grinding machine 7 to obtain a finished shaft product;

the first robot 8 is used for transferring shaft materials among the numerically controlled milling and drilling machine 1, the first scrap iron cleaning device 2, the first numerically controlled lathe 3, the second numerically controlled lathe 4 and the conveying device 10;

the conveying device 10 is used for conveying the shaft materials roughly machined by the first numerically controlled lathe 3 and the second numerically controlled lathe 4 from the working area of the first robot 8 to the working area of the second robot 9;

the second robot 9 is used for transferring shaft materials among the conveying device 10, the third numerically controlled lathe 5, the numerically controlled machining center 6 and the numerically controlled grinding machine 7.

In the embodiment of the invention, a numerically controlled milling and drilling machine 1, a first iron scrap cleaning device 2, a first numerically controlled lathe 3 and a second numerically controlled lathe 4 are arranged around a first robot 8, two end faces of a shaft material are milled by the numerically controlled milling and drilling machine 1, a central hole is milled and drilled in the two end faces of the shaft material, the shaft material is transferred to the first iron scrap cleaning device 2 by the first robot 8, iron scrap remained in the central hole in the end faces of the shaft material can be cleaned by the first iron scrap cleaning device 2, the shaft material is transferred to the first numerically controlled lathe 3 and the second numerically controlled lathe 4 by the first robot 8 after the iron scrap remained in the central hole in the shaft material is cleaned by the first iron scrap cleaning device 2, and rough machining is carried out on the shaft material by the first numerically controlled lathe 3 and the second numerically controlled lathe 4. Therefore, the first robot 8 can convey the shaft material needing to clean the residual iron chips in the central hole to the first iron chip cleaning device 2, the first iron chip cleaning device 2 can clean the residual iron chips in the central hole on the shaft material, so that the residual iron chips in the central hole on the shaft material can be automatically cleaned, the iron chip cleaning process does not need manual participation, and the labor intensity of workers in the motor shaft machining process can be reduced.

It should be understood that the cnc milling and drilling machine 1 is used for milling two end surfaces of a shaft material, so as to mill the two end surfaces of the shaft material into a plane and mill the shaft material to a required length. After the shaft material is milled to the required length, the numerical control milling and drilling machine 1 mills and drills central holes on two end faces of the shaft material, and the axis of the central hole on the shaft material is overlapped with the axis of the shaft material. The central hole milled and drilled on the shaft material can be a threaded central hole or a B-shaped central hole according to the specification of the required motor shaft, for example, the threaded central hole is milled and drilled on one end face of the shaft material, and the B-shaped central hole is milled and drilled on the other end face of the shaft material.

Fig. 2 is a schematic view of a first iron scrap cleaning device 2 according to an embodiment of the present invention, and as shown in fig. 2, the first iron scrap cleaning device 2 includes: a protective cover 21 and an air blowing pipe 22;

the protective cover 21 is of a tubular structure, the axial direction of the protective cover 21 is a vertical direction, the lower end of the protective cover 21 is closed, the air blowing pipe 22 penetrates into the protective cover 21 from the lower end of the protective cover 21, and the air outlet direction of the air blowing pipe 22 is upward along the vertical direction;

when the first robot 8 stretches one end of the shaft material into the protective cover 21 from the upper end of the protective cover 21, the air blowing pipe 22 blows air vertically upwards to clean the iron chips remained in the central hole at the end of the shaft material stretching into the protective cover 21.

In the embodiment of the invention, after the first robot 8 extends one end of the shaft material into the protective cover 21, the air blowing pipe 22 blows air upwards vertically, the air sprayed from the air blowing pipe 22 flushes the central hole in the lower end face of the shaft material, and iron chips in the central hole in the lower end face of the shaft material are cleaned out of the central hole. The air blowing pipe 22 is located in the protective cover 21, when the air blowing pipe 22 blows air to the center hole in the lower end face of the shaft material, residual scrap iron in the center hole flies out of the center hole under the action of high-speed airflow, the protective cover 21 can shield the flying scrap iron, and the scrap iron is prevented from splashing, so that the safety of scrap iron cleaning operation is guaranteed, and meanwhile, the sanitation of a motor shaft production line is convenient to maintain.

The lower end of the protective cover 21 is closed, and the iron chips flying out from the central hole fall into the bottom of the protective cover 21 under the action of gravity after being shielded by the protective cover 21, so that the cleaned iron chips can be conveniently treated. For example, the lower end of the protective cover 21 is detachably disposed, and when the iron filings in the protective cover 21 are accumulated to a certain amount, the lower end cover of the protective cover 21 is opened to discharge the accumulated iron filings in the protective cover 21, and then the lower end cover of the protective cover 21 is closed to close the lower end of the protective cover 21.

In one possible implementation, as shown in fig. 1, a first numerically controlled lathe 3 is used for roughing a first end of a shaft material, and a second numerically controlled lathe 4 is used for roughing a second end of the shaft material. When the first end of the shaft material is machined by the first numerically controlled lathe 3, the main shaft of the first numerically controlled lathe 3 is connected with the second end of the shaft material. When the second numerically controlled lathe 4 machines the second end of the shaft material, the main shaft of the second numerically controlled lathe 4 is connected with the first end of the shaft material.

In the embodiment of the invention, when the motor shaft is machined, the whole shaft material needs to be turned to a required diameter, but when the shaft material is machined by the lathe, one end of the shaft material needs to be connected with the main shaft of the lathe, and the end of the shaft material connected with the main shaft cannot be turned, so that two ends of the shaft material need to be respectively connected with the main shaft of the lathe, and two ends of the shaft material need to be respectively turned. After the first end of the shaft material is turned by the first numerically controlled lathe 3, the shaft material is transferred to the second numerically controlled lathe 4 by the first robot 8, the second end of the shaft material is turned by the second numerically controlled lathe 4, the shaft material which is turned by the first end is taken out from the first numerically controlled lathe 3 by the first robot 8, the shaft material which is not turned is put into the first numerically controlled lathe 3 by the first robot 8, so that turning of the shaft material is continuously realized, the production beat for turning the shaft material is matched with subsequent procedures, and the efficiency for machining the motor shaft is improved.

It should be noted that the first end of the shaft material refers to a portion of the shaft body close to the first end face, the second end of the shaft material refers to a portion of the shaft body close to the second end face, for example, the length of the shaft material is 500mm, the first end of the shaft material refers to a portion of the shaft body close to the first end face and having a length x, and the second end of the shaft material refers to a portion of the shaft body close to the second end face and having a length y, where x + y is 500, for example, x is 250mm, y is 250mm, for example, x is 200mm, and y is 300 mm.

It should also be noted that the motor shaft typically comprises a plurality of shaft sections of different diameters, the shaft material is rough machined by the first numerically controlled lathe 3 and the second numerically controlled lathe 4, the shaft material is machined into a shaft material comprising a plurality of shaft sections, each shaft section has a diameter larger than a desired diameter, for example, the diameter of the shaft section obtained by rough machining is 0.5mm larger than the desired diameter, and then the shaft material is finish machined by the third numerically controlled lathe 5 to machine the diameter of part or all of the shaft sections to the desired diameter. A third numerical control lathe 5 that is used for finish machining relatively has lower cost for first numerical control lathe 3 and the second numerical control lathe 4 of rough machining, carries out rough machining to the axle material through first numerical control lathe 3 and the second numerical control lathe 4 earlier, then carries out finish machining to the axle material through third numerical control lathe 5, under the prerequisite of guaranteeing that the off-the-shelf diameter of the axle meets the requirements, can improve the efficiency of carrying out lathe work to the axle material, can also reduce the cost of carrying out lathe work to the axle material.

Because the diameter precision requirements of different shaft sections on the motor shaft are different, for the shaft section with higher diameter precision requirements, after rough machining is carried out through the first numerically controlled lathe 3 or the second numerically controlled lathe 4, finish machining is carried out through the third numerically controlled lathe 5, and the diameter precision of the shaft section is ensured. For the shaft section with lower diameter precision requirement, the first numerical control lathe 3 or the second numerical control lathe 4 is used for rough machining, and the rough machining speed is high, and finish machining is not needed, so that the efficiency of turning the shaft material can be improved.

In a possible implementation manner, a first position sensor is arranged on the bed of the first numerically controlled lathe 3, a first sensing column is arranged on the tailstock of the first numerically controlled lathe 3, and when the tailstock of the first numerically controlled lathe 3 moves to a position where the first sensing column is in contact with the central hole in the first end surface of the shaft material, the first sensing column is in contact with the first position sensor, so that the first position sensor sends a first state feedback signal for indicating that the shaft material is clamped. And when the machine tool tailstock of the second numerical control storage 4 moves to a position in contact with the central hole in the second end surface of the shaft material, the second induction column is in contact with the second position inductor, so that the second position inductor sends a second state feedback signal for indicating that the shaft material is clamped.

In the embodiment of the invention, when the numerical control lathe turns the shaft material, one end of the shaft material is connected with the main shaft of the numerical control lathe, the other end of the shaft material is contacted with the machine tool tailstock of the numerical control lathe, the shaft material is clamped by the main shaft and the machine tool tailstock, and then the main shaft drives the shaft material to rotate, so that the shaft material and the turning tool rotate relatively, and the shaft material is turned by the turning tool. If the spindle and the tailstock of the machine tool do not clamp the shaft material and the spindle rotates, the shaft material can be separated from the spindle and fly out, and great potential safety hazards exist. Arranging a position sensor (a first position sensor/a second position sensor) on a lathe body of a numerical control lathe (a first numerical control lathe 3/a second numerical control lathe 4) according to the length of the shaft material, arranging a sensing column (a first sensing column/a second sensing column) on a lathe tailstock of the numerical control lathe (the first numerical control lathe 3/the second numerical control lathe 4), and only when a main shaft of the numerical control lathe (the first numerical control lathe 3/the second numerical control lathe 4) and the lathe tailstock clamp the shaft material, enabling the position sensor (the first position sensor/the second position sensor) to be in contact with the sensing column (the first sensing column/the second sensing column) so as to enable the position sensor (the first position sensor/the second position sensor) to send a feedback signal (a first state feedback signal/a second state feedback signal) for indicating the clamping state of the shaft material, and then the numerically controlled lathe (the first numerically controlled lathe 3/the second numerically controlled lathe 4) drives the main shaft to rotate after receiving the state feedback signal (the first state feedback signal/the second state feedback signal), so that the accident that the shaft material flies out due to the fact that the main shaft rotates because the shaft material is not clamped is avoided, and the safety of turning the shaft material is guaranteed.

As the machine tool tailstock of the numerical control lathe moves along the axial direction of the main shaft to clamp the shaft material, a position sensor (a first position sensor/a second position sensor) and an induction column (a first induction column/a second induction column) are arranged along the axial direction of the main shaft for this purpose, when the position sensor (the first position sensor/the second position sensor) and the induction column (the first induction column/the second induction column) meet the condition that the tailstock of the machine tool is contacted with the central hole on the end face of the shaft material, the position sensor (the first position sensor/the second position sensor) is in contact with the induction column (the first induction column/the second induction column) to ensure that the position sensor (the first position sensor/the second position sensor) sends a state feedback signal (a first state feedback signal/a second state feedback signal) when the shaft material is clamped.

Fig. 3 is a schematic view of another motor shaft machining line provided in an embodiment of the present invention, and as shown in fig. 3, the motor shaft machining line further includes, in addition to the motor shaft machining line shown in fig. 1: a second scrap iron cleaning device 11;

the third numerically controlled lathe 5, the second scrap iron cleaning device 11, the numerically controlled machining center 6 and the numerically controlled grinding machine 7 are arranged around the second robot 9;

the second robot 9 is used for transferring the shaft material subjected to finish machining by the third numerically controlled lathe 5 to the second scrap iron cleaning device 11;

second iron fillings cleaning device 11 is used for carrying out the finish machining back to the axle material at second numerical control lathe 5, clears up the iron fillings of winding on the axle material.

In the embodiment of the invention, when the third numerically controlled lathe 5 performs finish machining on the shaft material, filiform iron filings are formed and wound on the shaft material, and in order to avoid the influence of the iron filings wound on the shaft material on the grinding of the shaft material by the numerically controlled grinder 7, the iron filings wound on the shaft material need to be cleaned after the shaft material is machined by the third numerically controlled lathe 5. Through setting up third numerical control lathe 5 around second robot 9, second iron fillings cleaning device 11 and numerical control grinding machine 7, carry out the finish machining back to the axle material at third numerical control lathe 5, second robot 9 transports the axle material to second iron fillings cleaning device 11, second iron fillings cleaning device 11 is cleared up winding iron fillings on the axle material, iron fillings on the axle material are cleared up at second iron fillings cleaning device 11, second robot 9 transports the axle material to numerical control grinding machine 7 with the axle material brill and carries out grinding process. Because second robot 9 can transport the axle material through the finish machining to second iron fillings cleaning device 11, and second iron fillings cleaning device 11 can clear up the winding iron fillings on the axle material to need not the manual work and clear up winding iron fillings on the axle material, further reduce workman's intensity of labour in the motor shaft course of working.

Fig. 4 is a schematic view of a second iron scrap cleaning device 11 according to an embodiment of the present invention, and as shown in fig. 4, the second iron scrap cleaning device 11 includes: a bracket 111 and a steel brush 112;

the bracket 111 is fixedly arranged relative to the second robot 9, and the steel brush 112 is arranged at one end of the bracket 111;

the second robot 9 is used for transferring the axle material 100 after being subjected to finish machining by the third numerically controlled lathe 5 to a position where the axle material 100 is in contact with the steel brush 112, and driving the axle material 100 to move relative to the steel brush 112 on the premise that the axle material 100 is in contact with the steel brush 112, so that scrap iron wound on the axle material 100 is removed through the steel brush.

In the embodiment of the invention, the bracket 111 is fixedly arranged relative to the second robot 9, the steel brush 112 is arranged at one end of the bracket 111, and when the second robot 9 drives the axle material 100 to move, the axle material 100 moves relative to the steel brush 112. When the second robot 9 drives the shaft material 100 to move, the shaft material 100 moves relative to the steel brush 112 under the premise of keeping contact with the steel brush 112, and in the process that the shaft material 100 moves relative to the steel brush 112 (the shaft material 100 moves in the direction shown by the arrow in fig. 4), the steel brush 112 brushes away iron chips wound on the shaft material 100, so that the wound iron chips on the shaft material 100 are cleaned. Because second robot 9 can drive axle material 100 and move, through the relative steel brush 112 motion of second robot 9 drive axle material 100, make steel brush 112 fall the iron fillings of winding on axle material 100 brush, realize second iron fillings cleaning device 11's function through simple structure, guarantee that second iron fillings cleaning device 11 has lower cost.

Fig. 5 is a schematic view of another motor shaft machining line provided in an embodiment of the present invention, and as shown in fig. 4, the motor shaft machining line further includes, in addition to the motor shaft machining line shown in fig. 1: a chuck-handling device 12;

the third numerically controlled lathe 5, the numerically controlled machining center 6, the chuck loading and unloading device 12 and the numerically controlled grinder 7 are arranged around the second robot 9;

the chuck loading and unloading device 12 is used for installing or removing a grinding machine chuck at one end of the shaft material, wherein the grinding machine chuck is used for fixing the shaft material on a main shaft of the numerical control grinding machine 7;

the second robot 9 is used for transferring the shaft material subjected to finish machining by the third numerically controlled lathe 9 to the chuck handling device 12 so as to install a grinder chuck at one end of the shaft material subjected to finish machining by the third numerically controlled lathe 9; the second robot 9 is also used for transferring the shaft material processed by the numerically controlled grinder 7 to the chuck handling device 12 so as to remove the grinder chuck mounted at one end of the shaft material through the chuck handling device 12.

The position of the motor shaft for mounting the bearing and the oil seal is required to have smaller roughness, and therefore, after the shaft material is subjected to finish machining through the third numerically controlled lathe 5, the position of the shaft material for mounting the bearing and the oil seal is subjected to grinding machining through the numerically controlled grinder 7. When the shaft material is ground by the numerically controlled grinder 7, in order to avoid scratching the shaft material by a clamp of the numerically controlled grinder 7, a grinder chuck needs to be clamped at one end of the shaft material, a main shaft of the numerically controlled grinder 7 is connected with the shaft material through the grinder chuck, and after the shaft material is ground by the numerically controlled grinder 7, the grinder chuck needs to be detached from the shaft material.

In the embodiment of the invention, after the third numerically controlled lathe 9 carries out fine machining on the shaft material, the second robot 9 transfers the shaft material to the chuck loading and unloading device 12, after the chuck loading and unloading device 12 installs a grinder chuck at one end of the shaft material, the second robot 9 transfers the shaft material with the grinder chuck installed to the numerically controlled grinder 7, after the numerically controlled grinder 7 carries out grinding on the shaft material, the second robot 9 transfers the shaft material to the chuck loading and unloading device 12, after the chuck loading and unloading device 12 removes the grinder chuck installed on the shaft material, the second robot 9 transfers the shaft material to the numerically controlled machining center 6, and the numerically controlled machining center 6 mills a key groove on the shaft material. Therefore, the chuck assembling and disassembling device 12 can automatically assemble and disassemble the chuck of the grinding machine on the shaft material, so that the chuck of the grinding machine does not need to be manually assembled and disassembled on the shaft material, the labor intensity of workers in the machining process of the motor shaft can be further reduced, and the machining efficiency of the motor shaft can be improved.

Fig. 6 and 7 are schematic views of a chuck handling device 12 according to an embodiment of the present invention, and as shown in fig. 6 and 7, the chuck handling device 12 includes a support platform 121, an air cylinder 122, a pressure plate 123 and a third position sensor 124, wherein the air cylinder 122, the pressure plate 123 and the third position sensor 124 are all fixed on the support platform 121.

As shown in fig. 6 and 7, the grinding machine chuck includes a chuck main body 201, a connecting rod 202, a spring 203 and a clamping plate 204, wherein the chuck main body 201 is of a circular ring structure, the connecting rod 202 is disposed on an outer side wall of the chuck main body 201, a through hole is disposed on a side wall of the chuck main body 201, a first connecting hole communicated with the through hole is disposed on the chuck main body 201 along an axial direction of the chuck main body 201, a second connecting hole is disposed in a middle of the clamping plate 204, the clamping plate 204 passes through the through hole on the side wall of the chuck main body 201, and a pin 205 passing through the first connecting hole and the second connecting hole connects the chuck main body 201 and the clamping plate 204. One end of the spring 203 is connected to the connecting rod 202, and the other end of the spring 203 is connected to the holding plate 204.

When the third position sensor 124 senses that the second robot 9 extends one end of the shaft material into the annular hole of the chuck main body 201, the air cylinder 122 stops pressing the first end of the clamping plate 204, the second end of the clamping plate 204 moves towards the direction close to the shaft material 100 under the action of the spring 203, the grinding machine chuck is mounted on the shaft material 100 through the clamping force of the chuck main body 201 and the clamping plate 204 on the shaft material 100, the states of the chuck handling device 12 and the grinding machine chuck are shown in fig. 6, then the pressing plate 123 is turned towards the direction far away from the chuck main body 201, the relative position between the chuck main body 201 and the supporting platform 121 is stopped being fixed, and then the second robot 9 transfers the shaft material 100 with the grinding machine chuck to the numerically controlled grinding machine 7.

When the third position sensor 124 senses that the second robot 9 transfers the shaft material 100 with the grinder chuck to the target position on the support platform 121, the pressing plate 123 is turned towards the direction close to the chuck body 201, the chuck body 201 is clamped between the pressing plate 123 and the support platform 121 to fix the relative position of the chuck body 201 and the support platform 121, then the cylinder 122 presses the first end of the clamping plate 204, so that the clamping plate 204 and the chuck body 201 stop clamping the shaft material 100, at this time, the state of the chuck loading and unloading device 12 is as shown in fig. 7, and then the second robot 9 transfers the shaft material with the grinder chuck removed to the numerical control machining center 6.

In the embodiment of the present invention, the chuck loading and unloading device 12 includes the pressing plate 123, when the grinding machine chuck is mounted on or dismounted from the shaft material, the pressing plate 123 fixes the relative position between the chuck main body 201 and the supporting platform 121, so as to prevent the grinding machine chuck from moving during the process of loading and unloading the grinding machine chuck, ensure that the grinding machine chuck can be accurately mounted on the shaft material, and simultaneously prevent the shaft material from being damaged during the mounting of the grinding machine chuck.

In the embodiment of the present invention, the grinding machine chuck includes a spring 203 and a clamping plate 204, the clamping plate 204 can clamp the shaft material under the action of the spring 203, so as to mount the grinding machine chuck on the shaft material, and the air cylinder 122 included in the chuck loading and unloading device 12 can drive the clamping plate 204 to move against the elastic force of the spring 203, so that the clamping plate 204 stops clamping the shaft material, so as to detach the grinding machine chuck from the shaft material. Therefore, the automatic mounting and dismounting of the grinding machine chuck can be realized through the chuck mounting and dismounting device 12, and the manual work is not needed when the grinding machine chuck is mounted and dismounted, so that the labor intensity of workers in the motor shaft machining process is further reduced.

It should be noted that the motor shaft machining line may include a plurality of chuck handling devices 12, such as 3 chuck handling devices 12, where two chuck handling devices 12 are used for normal production and the other chuck handling device 12 is on standby. The two chuck assembling and disassembling devices 12 are used for normal production, the fact that the installing and disassembling of the grinding machine chucks on the shaft materials is matched with the production takt of the numerically-controlled grinding machine 7 and the numerically-controlled machining center 6 is guaranteed, the situation that the installing or disassembling of the grinding machine chucks on the shaft materials is not timely, the numerically-controlled grinding machine 7 or the numerically-controlled machining center 6 delays the machining of the shaft materials is avoided, and therefore the efficiency of machining the motor shaft can be guaranteed. One chuck attaching and detaching device 12 is used as a backup, and when the chuck attaching and detaching device 12 for normal production fails, the backup chuck attaching and detaching device 12 performs mounting or detaching of the grinding machine chuck instead of the failed chuck attaching and detaching device 12, thereby preventing the motor shaft machining line from being stopped due to the failure of the chuck attaching and detaching device 12, and further ensuring the efficiency of machining the motor shaft.

In a possible implementation manner, as shown in fig. 5, the motor shaft machining line provided by the embodiment of the invention further includes a tool compensation device 13, the tool compensation device 13 is disposed outside the motor shaft machining line, and the tool compensation device 13 is used for performing tool compensation on the numerically controlled grinding machine 7 in response to an externally input tool compensation command.

In the embodiment of the invention, because the tool abrasion can occur in the grinding process of the shaft material by the numerically controlled grinding machine 7, the tool compensation device 13 is arranged outside the motor shaft machining production line, when the tool of the numerically controlled grinding machine 7 needs to be subjected to tool compensation due to abrasion, a user can perform tool compensation on the numerically controlled grinding machine 7 through the tool compensation device 13 without stopping the line to the inside of the motor shaft machining production line to perform tool compensation on the numerically controlled grinding machine 7, and therefore, the efficiency of machining the motor shaft can be ensured.

In the embodiment of the present invention, the tool compensation device 13 may further automatically identify a tool wear condition of the numerically controlled grinding Machine 7, and detect the tool wear condition of the numerically controlled grinding Machine 7 through a Human Machine Interface (HMI), so that a user may input a tool compensation parameter according to the tool wear condition of the numerically controlled grinding Machine 7, and the tool compensation device 13 adjusts a tool position of the numerically controlled grinding Machine 7 according to the tool compensation parameter input by the user, thereby implementing tool compensation on the numerically controlled grinding Machine 7.

In a possible implementation manner, as shown in fig. 5, the motor shaft machining production line provided by the embodiment of the invention further includes a feeding basket 14, and shaft materials to be machined are stacked in the feeding basket 14 layer by layer. An electromagnet is arranged on the first robot 8, and the first robot 8 scans the shaft material in the feeding basket 14 layer by layer. After the first robot 8 scans the shaft material, the electromagnet on the first robot 8 is electrified, the shaft material is sucked up after the electromagnet is electrified, and the shaft material is transferred to the numerical control milling and drilling machine 1 after the shaft material sucked up is axially positioned by the first robot 8.

In the embodiment of the invention, the first robot 8 can scan the axle materials stacked in the feeding basket 14 layer by layer, and can suck the axle materials from the feeding basket 14 through the electromagnet, and compared with a scheme for grabbing the axle materials based on a machine vision technology, the axle material grabbing scheme provided by the embodiment of the invention has lower cost and higher reliability.

In a possible implementation manner, as shown in fig. 5, the motor shaft processing production line provided by the embodiment of the invention further includes a blanking frame 15, the second robot 9 is provided with an electromagnet, and the second robot 9 can suck up the shaft finished product through the electromagnet and stack the shaft finished product into the blanking frame 15 in a programmed stacking manner.

In the embodiment of the present invention, the blanking frame 15 is positioned so that the blanking frame 15 and the second robot 9 have a fixed relative position, and then the second robot 9 can operate according to a pre-programmed program to stack the shaft finished products into the blanking frame 15. The second robot 9 stacks the shaft finished products in the blanking frame 15 in a programmed stacking mode, and the stacking mode has low cost and reliability, so that the cost of a motor shaft machining production line can be reduced, and the reliability of machining the motor shaft is improved.

In one possible implementation, as shown in fig. 5, the motor shaft machining line provided by the embodiment of the invention further comprises a first sampling station 16 and a second sampling station 17. The first robot 8 can transfer the axle materials processed by the numerically controlled milling and drilling machine 1, the first numerically controlled lathe 3 and the second numerically controlled lathe 4 to the first sampling station 16 according to the preset sampling frequency, the second robot 8 can transfer the axle materials processed by the third numerically controlled lathe 5, the numerically controlled machining center 6 and the numerically controlled grinding machine 7 to the second sampling station 17 according to the preset sampling frequency, so that a user can check the axle materials on the first sampling station 16 and the second sampling station 17 to determine whether the axle materials are normally processed by the numerically controlled milling and drilling machine 1, the first numerically controlled lathe 3, the second numerically controlled lathe 4, the third numerically controlled lathe 5, the numerically controlled machining center 6 and the numerically controlled grinding machine 7 or not, and further can timely maintain and process the processing equipment with problems according to the sampling result, avoid a large amount of unqualified products and further ensure the processing efficiency of a motor shaft, and ensures that the processed motor shaft has higher quality.

It should be understood that numerically controlled milling and drilling machine 1, first iron fillings cleaning device 2, first numerically controlled lathe 3, second numerically controlled lathe 4, third numerically controlled lathe 5, numerical control machining center 6, numerically controlled grinder 7 and conveyor 10 are numerical control machining equipment, after first robot 8 or second robot 9 transported the axle material to above-mentioned numerical control machining equipment, above-mentioned numerical control machining equipment can carry out the centre gripping automatically to the axle material fixedly, and process the axle material according to the procedure of compiling in advance, the course of working need not artifical the participation, thereby realize the processing of motor shaft with higher automation.

Fig. 8 is a flow chart of a motor shaft machining method provided by an embodiment of the invention, the motor shaft machining method is realized on the basis of the motor shaft machining production line provided by any one of the above embodiments, unless otherwise stated, the numerical control milling and drilling machine, the first scrap iron cleaning device, the first numerical control lathe, the second numerical control lathe, the third numerical control lathe, the numerical control machining center, the numerical control grinding machine, the first robot, the second robot, the conveying device, the second scrap iron cleaning device and the chuck loading and unloading device are involved in the following method embodiments, the numerical control milling and drilling machine 1, the first scrap iron cleaning device 2, the first numerical control lathe 3, the second numerical control lathe 4, the third numerical control lathe 5, the numerical control machining center 6, the numerical control grinding machine 7, the first robot 8, the second robot 9, the conveying device 10, the second scrap iron cleaning device 11 and the chuck loading and unloading device 12 in the foregoing embodiment can be respectively adopted.

As shown in fig. 8, the motor shaft machining method provided by the embodiment of the invention includes the following steps:

801. the numerical control milling and drilling machine mills two end surfaces of the shaft material and mills and drills a central hole on the two end surfaces of the shaft material;

802. the first robot transfers the shaft material processed by the numerical control milling and drilling machine to a first scrap iron cleaning device;

803. the first scrap iron cleaning device cleans scrap iron remained in a central hole on the shaft material;

804. the first robot transfers the shaft material cleaned by the scrap iron cleaning device to a first numerical control lathe;

805. the first numerical control lathe roughly processes the first end of the shaft material after the scrap iron is cleaned by the first scrap iron cleaning device;

806. the first robot transfers the shaft material roughly processed by the first numerically controlled lathe to a second numerically controlled lathe;

807. the second numerically controlled lathe performs rough machining on the second end of the shaft material subjected to rough machining by the first numerically controlled lathe;

808. the first robot transfers the shaft material roughly processed by the second numerical control lathe to the conveying device;

809. the conveying device conveys the shaft material roughly machined by the second numerical control lathe from the working area of the first robot to the working area of the second robot;

810. the second robot transfers the shaft material roughly processed by the second numerical control lathe to a third numerical control lathe from the conveying device;

811. the third numerically controlled lathe carries out finish machining on the shaft material roughly machined by the second numerically controlled lathe;

812. the second robot transfers the shaft material after finish machining by the third numerically controlled lathe to the numerically controlled grinder;

813. grinding the shaft material subjected to finish machining by the third numerically controlled lathe by using the numerically controlled grinder;

814. the second robot transfers the shaft material ground and processed by the numerical control grinding machine to a numerical control processing center;

815. and the numerical control machining center mills key grooves on the shaft material ground and machined by the numerical control grinding machine to obtain a finished shaft product.

In the embodiment of the invention, a first robot can transfer shaft materials among the numerically controlled milling and drilling machine, the first scrap iron cleaning device, the first numerically controlled lathe, the second numerically controlled lathe, the third numerically controlled lathe and the conveying device, a second robot can transfer shaft materials among the conveying device, the third numerically controlled lathe, the numerically controlled machining center and the numerically controlled grinding machine, after the numerically controlled milling and drilling machine mills and drills a central hole on the end face of the shaft material, the first robot transfers the shaft materials to the first scrap iron cleaning device, the first scrap iron cleaning device cleans scrap iron remained in the central hole in the shaft material, and then the first robot transfers the shaft materials to the first numerically controlled lathe to perform subsequent machining on the shaft material. Therefore, after the shaft material is conveyed to the first scrap iron cleaning device by the first robot, the scrap iron remained in the central hole in the shaft material can be automatically cleaned by the first scrap iron cleaning device, then the shaft material after the scrap iron is cleaned by the first robot is conveyed to the first numerical control lathe for processing, the process of cleaning the scrap iron remained in the central hole in the shaft material does not need manual participation, and the labor intensity of workers in the machining process of the motor shaft can be reduced.

In a possible implementation manner, between step 811 and step 812, the motor shaft machining method provided by the embodiment of the invention further includes the step of cleaning iron chips wound on the shaft material. Specifically, after the third numerically controlled lathe carries out the finish machining to the axle material, the second robot transports the axle material to second iron fillings cleaning device, and second iron fillings cleaning device clears up the iron fillings of winding on the axle material.

In the embodiment of the invention, when the third numerically controlled lathe carries out finish machining on the shaft material, filiform iron chips wound around the shaft material are generated, and the generated iron chips can influence the numerically controlled grinder to carry out grinding machining on the shaft material. After the third numerically controlled lathe carries out the finish machining to the axle material, transport the axle material to second iron fillings cleaning device through the second robot, clear up the winding iron fillings on the axle material by second iron fillings cleaning device, then transport the axle material to numerically controlled grinder by the second robot and carry out abrasive machining, guarantee that numerically controlled grinder can process the axle material to required roughness, and then guarantee the off-the-shelf quality of the axle that obtains. In addition, through the clearance of second iron fillings cleaning device to the winding iron fillings on the axle material, iron fillings cleaning process need not artifical the participation to workman's intensity of labour in the motor shaft course of working can further be reduced.

In a possible implementation manner, when the shaft material is transferred to the numerically controlled grinder in step 812, the shaft material after being subjected to finish machining by the third numerically controlled lathe is transferred to the chuck handling device by the second robot, the grinder chuck is mounted at one end of the shaft material after being subjected to finish machining by the third numerically controlled lathe by the chuck handling device, and then the shaft material with the grinder chuck mounted thereon is transferred to the numerically controlled grinder by the second robot. Correspondingly, when the shaft material is transferred to the nc processing center in step 814, the shaft material ground and processed by the nc grinding machine is first transferred to the chuck handling device by the second robot, the grinding machine chuck mounted at one end of the shaft material is removed by the chuck handling device, and then the shaft material with the grinding machine chuck removed is transferred to the nc processing center by the second robot.

In the embodiment of the invention, when the shaft material is ground by the numerically-controlled grinder, the shaft material needs to be connected with a main shaft of the numerically-controlled grinder through a grinder chuck, before the shaft material is ground by the numerically-controlled grinder, the shaft material is transferred to the chuck assembling and disassembling device by the second robot, the grinder chuck is installed on the shaft material by the chuck assembling and disassembling device, after the shaft material is ground by the numerically-controlled grinder, the shaft material provided with the grinder chuck is transferred to the chuck assembling and disassembling device by the second robot, the grinder chuck installed on the shaft material is disassembled by the chuck assembling and disassembling device, so that the automatic assembling and disassembling of the grinder chuck are realized, the assembling and disassembling of the grinder chuck do not need manual participation, and the labor intensity of workers in the motor shaft machining process can be further reduced.

It should be noted that the motor shaft machining method provided by the embodiment of the present invention is implemented based on the motor shaft machining line in the foregoing embodiment, and specific steps of the motor shaft machining method may be referred to in the foregoing description of the motor shaft machining line embodiment, and are not described herein again.

It should be further noted that not all steps and modules in the above flows and system structure diagrams are necessary, and some steps or modules may be omitted according to actual needs. The execution order of the steps is not fixed and can be adjusted as required. The system structure described in the above embodiments may be a physical structure or a logical structure, that is, some modules may be implemented by the same physical entity, or some modules may be implemented by a plurality of physical entities, or some components in a plurality of independent devices may be implemented together.

In the above embodiments, the hardware module may be implemented mechanically or electrically. For example, a hardware module may comprise permanently dedicated circuitry or logic (such as a dedicated processor, FPGA or ASIC) to perform the corresponding operations. A hardware module may also include programmable logic or circuitry (e.g., a general-purpose processor or other programmable processor) that may be temporarily configured by software to perform the corresponding operations. The specific implementation (mechanical, or dedicated permanent, or temporarily set) may be determined based on cost and time considerations.

While the invention has been shown and described in detail in the drawings and in the preferred embodiments, it is not intended to limit the invention to the embodiments disclosed, and it will be apparent to those skilled in the art that various combinations of the code auditing means in the various embodiments described above may be used to obtain further embodiments of the invention, which are also within the scope of the invention.

Claims

1. A motor shaft machining line, characterized by comprising: the device comprises a numerical control milling and drilling machine (1), a first scrap iron cleaning device (2), a first numerical control lathe (3), a second numerical control lathe (4), a third numerical control lathe (5), a numerical control machining center (6), a numerical control grinding machine (7), a first robot (8), a second robot (9) and a conveying device (10);

the numerical control milling and drilling machine (1), the first scrap iron cleaning device (2), the first numerical control lathe (3) and the second numerical control lathe (4) are arranged around the first robot (8), the third numerical control lathe (5), the numerical control machining center (6) and the numerical control grinding machine (7) are arranged around the second robot (9), and the conveying device (10) is arranged between the first robot (8) and the second robot (9);

the numerical control milling and drilling machine (1) is used for milling two end faces of a shaft material and milling and drilling a central hole in the two end faces of the shaft material;

the first scrap iron cleaning device (2) is used for cleaning scrap iron remained in the central hole on the shaft material;

the first numerical control lathe (3) and the second numerical control lathe (4) are used for roughly machining the shaft material cleaned by the scrap iron cleaning device (2);

the third numerically controlled lathe (5) is used for performing finish machining on the shaft material roughly machined by the first numerically controlled lathe (3) and the second numerically controlled lathe (4);

the numerical control grinding machine (7) is used for grinding the shaft material which is subjected to finish machining by the third numerical control lathe (5);

the numerical control machining center (6) is used for milling key grooves on the shaft material ground and machined by the numerical control grinding machine (7) to obtain a shaft finished product;

the first robot (8) is used for transferring the shaft material among the numerical control milling and drilling machine (1), the first scrap iron cleaning device (2), the first numerical control lathe (3), the second numerical control lathe (4) and the conveying device (10);

the conveying device (10) is used for conveying the shaft material roughly machined by the first numerically controlled lathe (3) and the second numerically controlled lathe (4) from a working area of the first robot (8) to a working area of the second robot (9);

and the second robot (9) is used for transferring the shaft material among the conveying device (10), the third numerically controlled lathe (5), the numerically controlled grinder (7) and the numerically controlled machining center (6).

2. Motor shaft machining line according to claim 1, characterized in that said first scrap-iron cleaning device (2) comprises: a protective cover (21) and an air blowing pipe (22);

the protective cover (21) is of a tubular structure, the axial direction of the protective cover (21) is along the vertical direction, the lower end of the protective cover (21) is closed, the air blowing pipe (22) penetrates into the protective cover (21) from the lower end of the protective cover (21), and the air outlet direction of the air blowing pipe (22) is upward along the vertical direction;

when the first robot (8) stretches one end of the shaft material into the protective cover (21) from the upper end of the protective cover (21), the air blowing pipe (22) blows air upwards vertically to clean the residual iron chips in the central hole at one end of the shaft material stretching into the protective cover (21).

3. Motor shaft machining line according to claim 1,

the first numerically controlled lathe (3) is used for roughly machining the first end of the shaft material, wherein when the first numerically controlled lathe (3) roughly machines the first end of the shaft material, a main shaft of the first numerically controlled lathe (3) is connected with the second end of the shaft material;

the second numerically controlled lathe (4) is used for roughly machining the second end of the shaft material, wherein when the second numerically controlled lathe (4) roughly machines the second end of the shaft material, a main shaft of the second numerically controlled lathe (4) is connected with the first end of the shaft material.

4. Motor shaft machining line according to claim 3,

a first position sensor is arranged on the bed body of the first numerical control lathe (3), and a first sensing column is arranged on the machine tool tailstock of the first numerical control lathe (3);

a second position sensor is arranged on the body of the second numerical control lathe (4), and a second sensing column is arranged on the tailstock of the second numerical control lathe (4);

when the machine tool tailstock of the first numerical control lathe (3) moves to a position in contact with the central hole in the first end face of the shaft material, the first induction column is in contact with the first position inductor, so that the first position inductor sends a first state feedback signal for indicating that the shaft material is clamped;

when the machine tool tailstock of the second numerical control lathe (4) runs to a position where the machine tool tailstock is in contact with the central hole in the second end face of the shaft material, the second induction column is in contact with the second position inductor, and the second position inductor sends a second state feedback signal for indicating that the shaft material is clamped.

5. The motor shaft machining line of claim 1, further comprising: a second scrap iron cleaning device (11);

the third numerically controlled lathe (5), the second scrap iron cleaning device (11), the numerically controlled machining center (6) and the numerically controlled grinding machine (7) are arranged around the second robot (9);

the second robot (9) is used for transferring the shaft material subjected to finish machining by the third numerically controlled lathe (5) to the second scrap iron cleaning device (11);

and the second scrap iron cleaning device (11) is used for cleaning scrap iron wound on the shaft material after the shaft material is subjected to finish machining by the third numerical control lathe (5).

6. Motor shaft machining line according to claim 5, characterized in that said second scrap-iron cleaning device (11) comprises: a bracket (111) and a steel brush (112);

the bracket (111) is fixedly arranged relative to the second robot (9), and the steel brush (112) is arranged at one end of the bracket (111);

the second robot (9) is used for transferring the shaft material after being subjected to finish machining by the third numerically controlled lathe (5) to a position where the shaft material is in contact with the steel brush (112), and driving the shaft material to move relative to the steel brush (112) on the premise that the shaft material is in contact with the steel brush (112), so that scrap iron wound on the shaft material is removed through the steel brush (112).

7. The motor shaft machining line of claim 1, further comprising: a chuck mounting/dismounting device (12);

the third numerically controlled lathe (5), the numerically controlled machining center (6), the chuck loading and unloading device (12) and the numerically controlled grinding machine (7) are arranged around the second robot (9);

the chuck loading and unloading device (12) is used for installing or removing a grinding machine chuck at one end of the shaft material, wherein the grinding machine chuck is used for fixing the shaft material on a main shaft of the numerical control grinding machine (7);

the second robot (9) is used for transferring the shaft material subjected to finish machining by the third numerically controlled lathe (5) to the chuck loading and unloading device (12) so as to install the grinding machine chuck at one end of the shaft material subjected to finish machining by the third numerically controlled lathe (5), and transferring the shaft material machined by the numerically controlled grinding machine (7) to the chuck loading and unloading device (12) so as to dismantle the grinding machine chuck installed at one end of the shaft material.

8. Motor shaft machining line according to claim 7, characterized in that said collet handling device (12) comprises: the device comprises a supporting platform (121), an air cylinder (122), a pressure plate (123) and a third position sensor (124);

the air cylinder (122), the pressure plate (123) and the third position sensor (124) are all fixed on the supporting platform (121);

the grinding machine chuck includes: the clamp comprises a clamp body (201), a connecting rod (202), a spring (203) and a clamping plate (204);

the chuck main body (201) is of an annular structure, and the connecting rod (202) is arranged on the outer side wall of the chuck main body (201);

a through hole is formed in the side wall of the chuck main body (201), a first connecting hole communicated with the through hole is formed in the chuck main body (201) along the axis direction of the chuck main body (201), a second connecting hole is formed in the middle of the clamping plate (204), the clamping plate (204) penetrates through the through hole, and a pin shaft (205) penetrating through the first connecting hole and the second connecting hole connects the chuck main body (201) with the clamping plate (204);

one end of the spring (203) is connected with the connecting rod (202), and the other end of the spring (203) is connected with the clamping plate;

when the third position sensor (124) senses that the second robot (9) stretches one end of the shaft material into the annular hole of the chuck main body (201), the air cylinder (122) stops pressing the first end of the clamping plate (204), the second end of the clamping plate (204) moves towards the direction close to the shaft material under the action of the spring (203), the grinding machine chuck is installed on the shaft material through the clamping force of the chuck main body (201) and the clamping plate (204) on the shaft material, the pressing plate (123) overturns towards the direction far away from the chuck main body (201) and stops fixing the relative position of the chuck main body (201) and the supporting platform (121), and the second robot (9) transfers the shaft material provided with the chuck grinding machine to the numerical control grinding machine (7);

when the third position sensor (124) senses that the shaft material provided with the grinding machine chuck is transferred to the target position on the supporting platform (121) by the second robot (9), the pressing plate (123) is turned towards the direction close to the chuck main body (201), the chuck main body (201) is clamped between the pressing plate (123) and the supporting platform (121) so as to fix the relative position of the chuck main body (201) and the supporting platform (121), the cylinder (122) presses the first end of the clamping plate (204) in a jacking manner, the clamping plate (204) and the chuck main body (201) stop clamping the shaft material, and the shaft material after the grinding machine chuck is dismounted is transferred to the numerical control machining center (6) by the second robot (9).

9. The motor shaft machining line according to any one of claims 1 to 8, further comprising: a tool compensation device (13);

the cutter compensation device (13) is arranged outside the motor shaft machining production line;

the tool compensation device (13) is used for responding to an externally input tool compensation command and performing tool compensation on the numerical control grinding machine (7).

10. A motor shaft machining method using the motor shaft machining line according to any one of claims 1 to 9, characterized by comprising:

the numerical control milling and drilling machine (1) mills two end surfaces of a shaft material, and mills and drills a central hole (801) on the two end surfaces of the shaft material;

the first robot (8) transfers the shaft material processed by the numerical control milling and drilling machine (1) to the first scrap iron cleaning device (2) (802);

the first scrap iron cleaning device (2) cleans scrap iron (803) remained in the central hole on the shaft material;

the first robot (8) transfers the shaft material cleaned by the scrap iron cleaning device (2) to the first numerically controlled lathe (3) (804);

the first numerical control lathe (3) performs rough machining (805) on the first end of the shaft material after the scrap iron is cleaned by the first scrap iron cleaning device (2);

the first robot (8) transfers the axle material roughly machined by the first numerically controlled lathe (3) to the second numerically controlled lathe (4) (806);

the second numerically controlled lathe (4) performs rough machining (807) on the second end of the shaft material roughly machined by the first numerically controlled lathe (3);

the first robot (8) transfers the shaft material roughly processed by the second numerically controlled lathe (4) to the conveying device (10) (808);

the conveying device (10) conveys the shaft material roughly machined by the second numerical control lathe (4) from a working area of the first robot (8) to a working area (809) of the second robot (9);

the second robot (9) transfers the shaft material roughly processed by the second numerically controlled lathe (4) from the conveying device (10) to the third numerically controlled lathe (5) (810);

the third numerically controlled lathe (5) performs finish machining (811) on the shaft material roughly machined by the second numerically controlled lathe (4);

the second robot (9) transfers the shaft material after being subjected to finish machining by the third numerically controlled lathe (5) to the numerically controlled grinder (7) (812);

the numerically controlled grinder (7) grinds (813) the shaft material which is subjected to finish machining by the third numerically controlled lathe (5);

the second robot (9) transfers the shaft material ground by the numerical control grinding machine (7) to the numerical control machining center (6) (814);

and the numerical control machining center (6) mills key grooves on the shaft material ground and machined by the numerical control grinding machine (7) to obtain a finished shaft product (815).

11. The method according to claim 10, characterized in that the second robot (9) transfers the axle material finished by the third numerically controlled lathe (5) to the numerically controlled grinding machine (7), and further comprises:

the second robot (9) transfers the shaft material after being subjected to finish machining by the third numerically controlled lathe (5) to a second scrap iron cleaning device (11);

and the second scrap iron cleaning device (11) cleans scrap iron wound on the shaft material after the shaft material is subjected to finish machining by the third numerical control lathe (5).

12. The method according to claim 10 or 11,

the second robot (9) transfers the shaft material after being finish-machined by the third numerically controlled lathe (5) to the numerically controlled grinder (7), and the second robot comprises:

the second robot (9) transfers the shaft material subjected to finish machining by the third numerically controlled lathe (5) to a chuck loading and unloading device (12);

the chuck loading and unloading device (12) is used for installing a grinder chuck at one end of the shaft material which is subjected to finish machining by the third numerically controlled lathe (5);

the second robot (9) transfers the shaft material provided with the grinding machine chuck to the numerical control grinding machine (7); the second robot (9) will pass through after numerically control grinder (7) abrasive machining axle material transports to numerically control machining center (6), includes:

the second robot (9) transfers the shaft material ground by the numerical control grinding machine (7) to the chuck loading and unloading device (12);

the chuck loading and unloading device (12) is used for dismounting the grinding machine chuck arranged at one end of the shaft material;

and the second robot (9) transfers the shaft material with the grinding machine chuck removed to the numerical control machining center (6).